<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>用户登录</title>
    <style>
        #hello{text-align: center}
        #login{text-align: center;vertical-align: center}
    </style>
    <script src="js/jquery3.js"></script>
    <!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css"
          integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">
    <!-- 可选的 Bootstrap 主题文件（一般不用引入） -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap-theme.min.css"
          integrity="sha384-6pzBo3FDv/PJ8r2KRkGHifhEocL+1X2rVCTTkUfGk7/0pbek5mMa1upzvWbrUbOZ" crossorigin="anonymous">
    <!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"
            integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>
</head>
<body>
<h1>
    <p id="hello">
        hello,欢迎回来
    </p>
</h1>
<div id="login">
    <!--    记得将下面的get改成post，或者两name互换-->
    <form action="checklogin.php" method="post">
        用户名：<br><input type="text" id="username" name="username"><br>
        密码：<br><input type="password" id="password" name="password"><br>
        <!--        <button></button>-->
        <input type="submit" value="登录">
    </form>
    <form action="register.php" method="post">
        <button>注册</button>
    </form>
    <form action="forget_password.php" method="post">
        <button>忘记密码</button>
    </form>
    <form action="forget_password.php" method="post">
        <button>修改密码</button>
    </form>
</div>

</body>
</html>
<?php

?>
